Desulphurisation of iron melt - using polyethylene wax - coated sodium oxide desulphurising agent

摘要

Desulphurisation of cast iron as in BE 768210 in which a desulphurising agent is added, the grains of which are individually coated with a protective layer comprised principally of H and C characterised in that the coating compsn. is a polymer of a low m.wt. hydrocarbon, esp. polyethylene wax of m.wt. 50,000.